body{background:#0e0520}.seq-hero{background:linear-gradient(135deg,#4a0e1a,#2d0a2e,#16082b);padding:calc(var(--header-h) + var(--sp-12)) var(--sp-4) var(--sp-12);text-align:center;position:relative;overflow:hidden}.seq-hero:before{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(circle,rgba(245,200,66,.05) 1px,transparent 1px);background-size:26px 26px}.in-page-nav{position:sticky;top:var(--header-h);z-index:50;background:#0e0520f2;backdrop-filter:blur(10px);border-bottom:1px solid rgba(245,200,66,.1);overflow-x:auto;scrollbar-width:none}.in-page-nav::-webkit-scrollbar{display:none}.in-page-nav-inner{display:flex;gap:0;width:max-content;min-width:100%}.in-page-nav a{padding:14px 18px;font-size:.82rem;font-weight:600;color:var(--text-muted);white-space:nowrap;border-bottom:2px solid transparent;transition:all var(--t-sm) ease}.in-page-nav a:hover{color:var(--text-primary)}.in-page-nav a.active{color:var(--gold);border-bottom-color:var(--gold)}.section-ladder{padding:var(--sp-16) 0;background:#0a0318}.rank-ladder{display:flex;flex-direction:column;gap:var(--sp-3)}.rank-item{border:1px solid rgba(245,200,66,.1);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:border-color var(--t-sm) ease}.rank-item:hover{border-color:#f5c84247}.rank-item.is-open{border-color:#f5c84259}.rank-header{display:flex;align-items:center;gap:var(--sp-4);padding:var(--sp-4) var(--sp-5);background:#ffffff08;transition:background var(--t-sm) ease;cursor:pointer;width:100%;border:none;text-align:left}.rank-item.is-open .rank-header{background:#f5c8420f}.rank-num{width:36px;height:36px;border-radius:50%;flex-shrink:0;background:var(--grad-gold);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;color:#1a0a04;line-height:1}.rank-num--low{background:linear-gradient(135deg,#2a2a36,#3a3a48);color:var(--text-muted)}.rank-info{flex:1}.rank-name{font-weight:800;font-size:1.05rem;color:var(--text-primary)}.rank-name-hi{font-size:.78rem;color:var(--text-muted);margin-top:1px}.rank-example-hand{display:flex;gap:var(--sp-1);align-items:center;flex-shrink:0}.mini-card{width:32px;height:44px;border-radius:5px;background:linear-gradient(145deg,#1a1a24,#2e2e3e);border:1px solid rgba(245,200,66,.25);display:flex;align-items:center;justify-content:center;font-size:.65rem;font-weight:800;color:var(--gold);line-height:1;flex-direction:column;gap:1px}.mini-card.red{color:#f44;border-color:#ff444440}.mini-card .suit{font-size:.7rem}.rank-chevron{color:var(--gold-antique);font-size:1rem;flex-shrink:0;transition:transform var(--t-md) ease}.rank-item.is-open .rank-chevron{transform:rotate(180deg)}.rank-body{max-height:0;overflow:hidden;transition:max-height var(--t-lg) var(--ease-out);background:#ffffff05}.rank-item.is-open .rank-body{max-height:600px}.rank-body-inner{padding:var(--sp-5) var(--sp-5) var(--sp-6);display:grid;gap:var(--sp-5)}@media(min-width:640px){.rank-body-inner{grid-template-columns:1fr 1fr}}.rank-desc{font-size:.92rem;color:var(--text-muted);line-height:1.7}.rank-desc strong{color:var(--text-primary)}.rank-prob{display:flex;flex-direction:column;gap:var(--sp-2);padding:var(--sp-3) var(--sp-4);background:#f5c8420f;border:1px solid rgba(245,200,66,.15);border-radius:var(--r-md)}.rank-prob-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--gold-antique)}.rank-prob-val{font-size:1.2rem;font-weight:800;color:var(--gold)}.rank-prob-sub{font-size:.75rem;color:var(--text-dim)}.rank-examples{display:flex;flex-direction:column;gap:var(--sp-2)}.rank-example{font-size:.85rem;color:var(--text-muted)}.rank-example strong{color:var(--text-primary);font-family:monospace}.section-qref{padding:var(--sp-16) 0;background:#0e0520}.qref-table{width:100%;border-collapse:collapse;font-size:.88rem}.qref-table th{padding:var(--sp-3) var(--sp-4);text-align:left;background:#f5c84214;color:var(--gold);font-weight:700;white-space:nowrap;border-bottom:2px solid rgba(245,200,66,.2)}.qref-table td{padding:var(--sp-3) var(--sp-4);color:var(--text-muted);border-bottom:1px solid rgba(255,255,255,.05)}.qref-table tr:nth-child(2n) td{background:#ffffff04}.qref-table .rank-col{color:var(--text-primary);font-weight:700}.clarifier-grid{display:grid;gap:var(--sp-4);grid-template-columns:1fr}@media(min-width:640px){.clarifier-grid{grid-template-columns:1fr 1fr}}.clarifier-card{background:#ffffff0a;border:1px solid rgba(245,200,66,.12);border-radius:var(--r-lg);padding:var(--sp-5)}.clarifier-q{font-weight:700;font-size:.95rem;margin-bottom:var(--sp-2);color:var(--gold)}.clarifier-a{font-size:.88rem;color:var(--text-muted);line-height:1.7}.clarifier-a strong{color:var(--text-primary)}